Whats wrong with my sr20 ac? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

BillyTheChamp · 04-16-2007, 11:53 PM

i have a s14 with an sr20 red top.. the motor came with no ac belt on it so i tried to install one today.. when i put the belt on and started the car the compressor was spinning but the center spinning wheel on the compressor did not spin.. i was not getting cold air.. and yes i did press the ac button.. i checked the compressor fuse and swapped it out to make sure it wasn't a fuse, and it wasn't.. i'm pretty much stumped.. i'm moving back to Las Vegas soon and need to get my ac working.. any tips or advice?

Billy

mandoz85 · 04-17-2007, 01:11 AM

Is the A/C wired up? Is the system charged with freon? Most Sr swap do not have working A/C.

bo2o · 04-17-2007, 01:17 AM

check wires

use a test light or power probe on the fuse.

see if theres current going to it.

DoriftoPnoy · 04-17-2007, 01:55 AM

are all the lines still hooked up? do you still have all the a/c parts? condensor, drier, blower, etc. might wanna check to see if you have freon too.

BillyTheChamp · 04-17-2007, 02:11 AM

yeah all the lines and everything is connected..and i do have the condensor, drier and blower and it does have freon in it as well.. all it was needing was the belt.. but after i put the belt on i dont know why the compressor did not start.. (spun, but the center plate did not spin).. i might have to check the wiring.. i dont have a test light so guess i need to go buy one.. anyone had any other problems connecting thier ac? is it possible to turn off your ac via ecu chipping? i know with honda's you can make ac cut out with hondata/chrome.. i didnt know much about 240 ecu tuning.. are there any fuses under the steering wheel that has to do with ac? (my little fuse reference plate under the dash is missing).. this is frustrating!

jkjunior · 04-17-2007, 06:54 AM

its possible whoever wired the sr20 harness to fit ur chassis never hooked it up. I belive its a yellow wire with green stripe if i remember correctly.

***S14DB*** · 04-17-2007, 07:31 AM

I haven't seen a S13SR->S14 with working AC. The wiring of the AC controls between the S13 and S14 is different and most people do not spend the time to rewire the two different systems together.

BillyTheChamp · 04-17-2007, 01:29 PM

hmmm.. thats good to know.. i wouldnt think there would be much of a difference.. is there a manual out there where i can figure out the wiring?

codyace · 04-17-2007, 02:59 PM

I actually make conversion brackets that allow you to use the S14 KA compressor with your s13 redtop. No need to run R12, or have stuff welded...just bolt on and go.

Using an S13 SR compressor is odd, as you will need different lines, as well as a way to change the system over to R134a vs the R12 that they use overseas during those years. As far as the wiring is concerned, my harness from Yuri @ Wiring Specialties already had it wired in like it should be.

04-16-2007, 11:53 PM	#1
BillyTheChamp Leaky Injector Join Date: Mar 2007 Location: Las Vegas Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	Whats wrong with my sr20 ac? i have a s14 with an sr20 red top.. the motor came with no ac belt on it so i tried to install one today.. when i put the belt on and started the car the compressor was spinning but the center spinning wheel on the compressor did not spin.. i was not getting cold air.. and yes i did press the ac button.. i checked the compressor fuse and swapped it out to make sure it wasn't a fuse, and it wasn't.. i'm pretty much stumped.. i'm moving back to Las Vegas soon and need to get my ac working.. any tips or advice? Billy

04-17-2007, 01:11 AM	#2
mandoz85 Zilvia Member Join Date: Apr 2003 Location: Las Vegas, NV Age: 39 Posts: 207 Trader Rating: (0) Rides Gallery: mandoz85 Feedback Score: 0 reviews	Is the A/C wired up? Is the system charged with freon? Most Sr swap do not have working A/C. __________________

04-17-2007, 01:17 AM	#3
bo2o Zilvia FREAK! Join Date: May 2006 Location: 626 socal! Posts: 1,315 Trader Rating: (7) Feedback Score: 7 reviews	check wires use a test light or power probe on the fuse. see if theres current going to it. __________________ fS! *vlsd ! slim fans ! hid kits ! lug nuts !* http://www.zilvia.net/f/search.php?d...earchuser=bo2o ^^^click^^^

04-17-2007, 01:55 AM	#4
DoriftoPnoy Zilvia Addict Join Date: Apr 2005 Location: SoCal 818 Posts: 715 Trader Rating: (2) Feedback Score: 2 reviews	are all the lines still hooked up? do you still have all the a/c parts? condensor, drier, blower, etc. might wanna check to see if you have freon too. __________________

04-17-2007, 06:54 AM	#6
jkjunior Zilvia FREAK! Join Date: Dec 2003 Location: united states Posts: 1,123 Trader Rating: (27) Feedback Score: 27 reviews	its possible whoever wired the sr20 harness to fit ur chassis never hooked it up. I belive its a yellow wire with green stripe if i remember correctly. __________________ 91 S13 Hatch- Old Lady Hit Me -Junk Yard 91 S13 Coupe Se- Junk yard 95 S14 Zenki Current 95 S14 Zenki Converted to Kouki SOLD 97 S14 Kouki - Junk Yard 89 S13 Hatch - SOLD Feedback - http://www.zilvia.net/f/showthread.php?t=130589

04-17-2007, 02:11 AM	#5
BillyTheChamp Leaky Injector Join Date: Mar 2007 Location: Las Vegas Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	yeah all the lines and everything is connected..and i do have the condensor, drier and blower and it does have freon in it as well.. all it was needing was the belt.. but after i put the belt on i dont know why the compressor did not start.. (spun, but the center plate did not spin).. i might have to check the wiring.. i dont have a test light so guess i need to go buy one.. anyone had any other problems connecting thier ac? is it possible to turn off your ac via ecu chipping? i know with honda's you can make ac cut out with hondata/chrome.. i didnt know much about 240 ecu tuning.. are there any fuses under the steering wheel that has to do with ac? (my little fuse reference plate under the dash is missing).. this is frustrating!

04-17-2007, 07:31 AM	#7
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	I haven't seen a S13SR->S14 with working AC. The wiring of the AC controls between the S13 and S14 is different and most people do not spend the time to rewire the two different systems together. __________________ Comments should be taken as Opinions not as Statements of Fact

04-17-2007, 01:29 PM	#8
BillyTheChamp Leaky Injector Join Date: Mar 2007 Location: Las Vegas Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	hmmm.. thats good to know.. i wouldnt think there would be much of a difference.. is there a manual out there where i can figure out the wiring?

04-17-2007, 02:59 PM	#9
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 40 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	I actually make conversion brackets that allow you to use the S14 KA compressor with your s13 redtop. No need to run R12, or have stuff welded...just bolt on and go. Using an S13 SR compressor is odd, as you will need different lines, as well as a way to change the system over to R134a vs the R12 that they use overseas during those years. As far as the wiring is concerned, my harness from Yuri @ Wiring Specialties already had it wired in like it should be. __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

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